ovato-lanceoLatis margine reflexis apice hyalinis evanidinerviis, perichætialibus latioribus, capsula immersa
elliptica pachyderma exannulata.
Var. foliis mutieis.
H a b . Rocks : New Country, J . J). i l . Bed of stream at foot of Mount Nelson, J . J). H. Coal River,
Richmond, on stones. [Oldfield, 143, 6 6 .) Mount Wellington. [Gunn, 1609.) On stones ; the Hummocks;
and on rocks: Meander River and Jackey’s Plain Creek, near Chesliunt, Archer.
D i s t r ib . New Zealand, Europe, America.
§ 2. G r im m ia .— C a lyp tra lobata v el cu cu lia ta . Capsula in pedicello curvato emersa v el exsei'ta.
2. Grimmia p ulvinata (Hook, et Tayl. Muse. Brit. 38. t. 13) ; dense pulvinata, foliis lanceoiato-
oblongis superne carinatis repente piliferis evanidinerviis margine recurvis, capsula in pedicello arcuato
demissa ovah striata, auuulo duplice, operculo rostrato, calyptra mitræformi.
Var. 0 . Africana; humilior, capsula breviore, operculo conico mamillato brevissimo, dentibus brevioribus.—
Fissidens pulvinatus, var. 0 , Hedw. Sp. Muse. t. 43. G. cygnicolla, Taylor.
H a b . On trap rocks : near Glen L e ith ,/ . D. Zf. Seaside, South Port. (Gwkm, 1692, 8 .) [Oldfeld,
332.) Cheshunt, and on rocks; Port Sorrell, Archer.
D i s t r ib . New Zealand, Australia, Europe, Africa, America.
3. Grimmia trichop h ylla (Greville, Scot. Crypt. Fl. t. 100) ; dioica, laxe pulvinata, foliis lineari-
lanceolatis flexuosis sensim in pilo diaphano sublævi attenuatis siccitate crispulis, capsula in pedicello
cygneo subpendula ovali striata siccitate anguiosa, operculo conico-rostrato, annulo lato, peristomii dentibus
bifidis.
H a b . Mount Welbngtou, etc., on rocks. (Gunn.) { J .B .H .) [Oldfield, ZZI b.) Cheshunt, rfro/zcr.
D i s t r ib . Europe, Asia Minor.
4. Grimmia fu n alis (Br. et Schimp. Bryol. Eur. t. 247) ?
H a b . ? (Barren specimen only.) (Gan«.)
§ 3 . O k th o g k im m ia .— C a p su la p ed ice llu s rectus.
5. Grimmia leucophæa (Greville, Trans. Wern. Soc. iv. t. 6 ) ; dioica, foliis erecto-patentibus siccitate
appressis ovato-oblongis concavis piliferis margine planis tenuinerviis, capsula ovalis in pedicello
breriter exserto erecta microstoma, operculo recte rostrato, annulo lato, peristomii dentibus bi-trifidis cri-
brosis.—G. campestris. Hook. Muse. Exot. t. 129.
H a b . On moist rocks : near Hobarton,/ . i). Z7. On stones : the Hummocks, rfrc/«-.
D is t r ib . Europe, North America, Africa, Australia.
Gen. XXI. PTYCHOMITRIÜM, Br. et Schimp.
Peristomium simplex; denies 16, e basi lanceolata subulati, in crura inæqualia fissi, vieillis æqualibus.
Calyptra sulcata, nuda, basi lobata. Capsula ovalis vel oblongo-cylindrica, brevicolla. Operculum longum,
rectirostrum. Flores monoici, masculi axillares vel terminales, gemmæformes.
1. P tychomitrium acutifolium (Hook. fil. et Wils.) ; caule humili incrassato ramoso, foliis confertis
patenti-incurvis siccitate intortis lanceolato-subulatis acutis planiusculis solidinerviis basi pellucide
areolatis, capsula majuscula ovali erecta annulata, peristomii dentibus breviusculis læviusculis subfissis
membrana basilari connexis. (T a b . CLXXIII. Fig. 2 .)
H a b . On banks and trap rocks near the Derwent, Glen Leith, very rare, J. B . 11. On rocks : Port
Sorrell, Archer.
D is t r ib . South Australia. (G. Prentice, Esq.)
Stem 2 lines long. Leaves ci’owdcd, j'ellowisli-green ; margin subreflexed ; upper areolæ qiiadrato-punctiform,
lower ones rectangular. Seta 2 lines, pale. Annulus large. Spores brownish. Male fiowers aggregate, gemmæ-
form, axillary.—Closely allied to P. crassinervium (Schimper), but differs in tlie peristome, and in the larger areolæ.
P. Drummondii is smaller, and has no annulus ; aud from P. crispata our Moss differs iu the acute tapering leaves.
— P l a t e CLXXIII. Fig. 2; 1, fruiting specimen ; 2, leaf; 3, capsule; 4, teèth; h, cFcpfixxi.-.—all magnified.
2. Ptychomitrium serratum (Mitten, in Linn. Soc. Journ. ined.) ; “ Z*. polyphyllo minor, foliis
patenti-recurvis e basi ovata lanceolatis sensim acutis margine apicem versus serrato inferne recurvo, nervo
percurrente, cellulis basi paucis elongatis mox in rotundatis a sese remotiusculis diámetro circiter -4-ôVü-
uiiciæ metientibus transeuntibus, perichætialibus caulinis similibus, theca in pedúnculo quadrilineari ovali-
cyliudrica, operculo subulato subæquilongo, peristomio dentibus longiusculis rabris asperulis profunde fissis
basi geminatim approximatis, calyptra P. crispati.” (T a b . CLXXIII. Fig. 3 .)
IIab. On rocks : north side of the Cataract, Launceston, Archer.
In size and habit so nearly resembling P. acutifolium as to be readily mistaken for it, but safely distinguished
by the serrated leaves, which are shorter and less nan-owed torvards the apex than those of P. polypliyllum.
Milten, I.e.—P la t e CLXXIII. Fig. 3; 1, capsule, with calyptra; 2, leaf; 3, teeth:—all magnified.
Gen. XX II. RACOMITRIUM, Bridel.
Peristomium simplex; denies 16, bi-trifidi; crura nunc filiformia, longissima, ad basin usque libera,
nunc breviora, lineari-subulata, inæqualia, irregulariter coalita. Capsula in pedicello strictiusculo exserta,
elliptica oblongave, lævis, ore angustata, annulata. Operculum conico-subulatum. Calyptra conico-mitræ-
formis, ad apicem subulata, basi membranacea pluries fissa, apice solida, papillosa, operculum tegens.—
Florescentia dioica. Folia evanidinervia, carinata, margine recurvo. Reticulatio ex areolis superne qua-
dratis vel elougato-sinuosis, inferne longioribus, angustis, valde sinuosis. Habitus a Grimmoideo ad Hyp-
noideum transitionem metiens. Ilabitatio terrestris et rupestris.
1. D r y p t o d o r .— Plantee dichotome ram o sa , innovationihus simplicibus, fa s tig ia tis .
1. R a c om itrium (D rjrp to d o n ) crispxilrim (Hook. fll. et Wils. Fl. Antarct. 124. t. 57. f. 9) ; foliis
erecto-patentibus subrecurvis ovato-oblongis acuminatis carinatis margine basi reflexa apice subdiaphaiiis,
nervo continuo, seta perbrevi, capsula elliptico-oblonga, operculo conico-subulato, peristomii dentibus bifidis
siccitate reflexis.— Fl. N. Zeal. p . 75.
Var. 1 ; foliis brevioribus mutieis.
Var. 2 ; foliis longioribus mutieis.
H a b . Var. 1. On trap rocks near Glen Leith, rare. On stones near Lake Echo, J. B . II. Var. 2.
St. Patrick’s River. [Gunn, 1608, 1627, 21.) Rocks ; North and South Huon. [Oldfield, 62.) On rocks
and stones : rivulet near Cumming’s Head, Western Mountains, Archer.
D is t r ib . Antarctic Islands, New Zealand.
, 2. R a c o m i t r i u m .'— P la n ta irreg u la riter ramo sa , ram u lis brevibus, innovaiionibus h a u d fa s tig ia tis .
2. R a c om itriiu n sym p h y o d o n [Grimmia, C. Mueller, Syn. Muse. i. 809) ; caule gracili elongato,
ramulis subfasciculatis gracilibus, foliis patentibus subsecundis siccitate erectis ovato-lanceolatis acuminatis
hyaline apiculatis margine inferne recurvis, perichætialibus acutiusculis, capsula in pedúnculo flavido tenuissimo
breviusculo cylindrica microstoma, peristomii dentibus brevibus cruribus cohærentibus, calyptra
apice seabriuscula.— R. fasciculare, var. 2 aud 3. Hook. fil. et IFils. in Fl. Antarct. p . 96. Grimmia
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